Spectroscopy of nuclear systems. Progress report, January 1--December 31, 1974 Page: 8 of 53
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This work is focused on the study of the nuclear structure of nuclei
near closed shells viL radioactive decay scheme spectroscopy and in-beam
y-ray spectroscopy. These nearly spherical nuclei are particularly inter-
esting to study because their low-lying levels may be wall described by
simple nuclear models. In order to have a comprehensive experimental
description of these nuclei it is necessary to have lifetimes, spins, and
parities of the excited states as well as energies and branching ratios of
the y rays. When possible these quantites are determined by studying y
rays emitted during nuclear reactions as well as y rays emitting following
radioactive decay. In some cases the nucleus of interest can -ot be
studied by simple in-beam reaction spectroscopy because there are no
nearby stable nuclei. In these cases the study of short-lived nuclei is
one of the best tools for nuclear structure determinations, Part I of
this report describes our work in the past year concerning the structure
of nuclei near closed shells using decay schema spectroscopy of short-lived
species. Fart II of this report describes our recent work on in-bean y-ray
spectroscopy including Doppler-shift lifetime measurements. Part III
describes instrument development over the past year and the final section
describes the development of a beta attenuation mass monitor for use with
atomospheric aerosols. This application of a nuclear technique to an
environmental problem was not supported under this contract but is included
to indicate another direction of our nuclear chemistry research.
This progress report marks the end of the first 21 months of this AEC
contract research. This has been a period of rapid growth and progress in
the associated research program. This is the last report in the present
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Macias, E. S. Spectroscopy of nuclear systems. Progress report, January 1--December 31, 1974, report, January 1, 1974; St. Louis, Missouri. (https://digital.library.unt.edu/ark:/67531/metadc1020885/m1/8/: accessed April 22, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.